CN218616342U - Battery thermal management system and vehicle - Google Patents
Battery thermal management system and vehicle Download PDFInfo
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- CN218616342U CN218616342U CN202223164216.0U CN202223164216U CN218616342U CN 218616342 U CN218616342 U CN 218616342U CN 202223164216 U CN202223164216 U CN 202223164216U CN 218616342 U CN218616342 U CN 218616342U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a battery thermal management system and vehicle, battery thermal management system, include: a first circulation loop and a second circulation loop, the second circulation loop comprising: the power battery and the battery cooler are sequentially communicated through a pipeline, the cooling liquid in the second circulation loop circularly flows between the power battery and the battery cooler, and the refrigerant in the first circulation loop is suitable for taking away the heat of the cooling liquid in the second circulation loop in the battery cooler; the second circulation loop further comprises: a motor radiator adapted to reduce the temperature of the coolant in the second circulation loop. The battery heat management system of this application dispels the heat to the battery together through idle motor radiator cooperation battery cooler when charging, has further promoted battery heat management system's cooling rate.
Description
Technical Field
The application relates to the field of vehicles, in particular to a battery thermal management system and a vehicle.
Background
At present, electric vehicles are more and more popular, and the requirement of customers on the charging speed of the electric vehicles is higher and higher.
When the battery is charged, if the charging current is increased, namely, if the quick charging is used, the calorific value of the battery is more than that of the low-current charging (ordinary charging), the higher the charging speed is, the more the heat generated in the battery is, and if the heat generated by the battery charging cannot be dissipated in time, the heat accumulation is caused, and the irreversible damage to the battery is caused. The heat dissipation scheme of the battery in the related art needs to be improved.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. For this reason, an object of this application lies in proposing a battery thermal management system, and it dispels the heat to the battery together through idle motor radiator cooperation battery cooler when charging, has further promoted battery thermal management system's cooling rate.
The battery thermal management system according to the embodiment of the application comprises: a first circulation loop, the first circulation loop comprising: the refrigerant in the first circulation loop circularly flows among the compressor, the first heat exchanger, the throttling element and the battery cooler; a second circulation loop, the second circulation loop comprising: the power battery and the battery cooler are sequentially communicated through a pipeline, the cooling liquid in the second circulation loop circularly flows between the power battery and the battery cooler, and the refrigerant in the first circulation loop is suitable for taking away the heat of the cooling liquid in the second circulation loop in the battery cooler; the second circulation loop further comprises: a motor radiator adapted to reduce the temperature of the coolant in the second circulation loop.
According to battery thermal management system according to this application embodiment, not only through battery cooler cooling power battery, still through motor radiator cooling power battery, compare in the scheme that only uses battery cooler and promoted battery thermal management system's cooling rate greatly. And the motor radiator is an existing component in the vehicle, so that the components in the vehicle are effectively utilized, the utilization rate of the motor radiator is improved, and the cost of the battery thermal management system is reduced. And the motor radiator is added into the second circulation loop through a pipeline, so that the total amount of cooling liquid in the second circulation loop is increased, the heat capacity of the second circulation loop is improved, and the refrigerating capacity of the battery heat management system is indirectly improved.
In some embodiments, the motor radiator comprises a heat exchange tube and a heat exchange fin sleeved outside the heat exchange tube, and the cooling liquid is suitable for flowing in the heat exchange tube.
In some embodiments, the motor radiator is disposed at one side of the first heat exchanger, and the cooling fan generates wind adapted to blow through the first heat exchanger and the motor radiator.
In some embodiments, the battery thermal management system further comprises: the switching device is respectively communicated with the power battery, the battery cooler and the motor radiator; the battery thermal management system has a first cooling mode and a second cooling mode, the switching device is adapted to switch the battery thermal management system between the first cooling mode and the second cooling mode; in a first cooling mode, the cooling liquid in the second circulation loop sequentially flows through the power battery, the motor radiator and the battery cooler; in a second cooling mode, the second circulation circuit circulates a cooling fluid between the power battery and the battery cooler.
In some embodiments, the switching device comprises: the first four-way valve is communicated with the power battery, the battery cooler, the motor radiator and the second four-way valve respectively, and the second four-way valve is communicated with the motor radiator, the battery cooler, the power battery and the first four-way valve respectively.
In some embodiments, the second circulation circuit further comprises a first water pump adapted to drive the flow of the coolant in the second circulation circuit.
In some embodiments, further comprising: one end of the second water pump is communicated with the motor radiator, the other end of the second water pump is communicated with the power motor, and one end, far away from the second water pump, of the power motor is communicated with the second four-way valve.
In some embodiments, the first cooling mode has a first state, a second state, and a third state; in a first state, the first water pump or the second water pump drives the cooling liquid to flow in the second circulation loop; in a second state, the first water pump and the second water pump drive the cooling liquid to flow in the second circulation loop; in a third state, the first water pump and the second water pump drive the coolant to flow in the second circulation circuit, and the compressor drives the refrigerant to flow in the first circulation circuit.
In some embodiments, the battery thermal management system further has a heat pump mode in which the coolant in the second circulation loop flows through the power battery, the battery cooler, and the motor radiator in sequence, the coolant discharged from the battery cooler being adapted to extract heat from the atmosphere in the motor radiator.
The vehicle according to the embodiment of the application comprises the battery thermal management system in the technical scheme.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a first cooling mode of a battery thermal management system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a second cooling mode of a battery thermal management system according to an embodiment of the present application;
fig. 3 is a schematic diagram of a heat pump mode of a battery thermal management system according to an embodiment of the present application.
Reference numerals: 1. a first circulation loop; 11. a compressor; 12. a first heat exchanger; 121. a cooling fan; 13. a throttling element; 14. a battery cooler; 2. a second circulation loop; 21. a first water pump; 22. a power cell; 23. a motor radiator; 24. a second water pump; 25. a power motor; 3. a switching device; 31. a first four-way valve; 32. a second four-way valve.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
A battery thermal management system according to an embodiment of the present application is described below with reference to fig. 1-3.
Referring to fig. 1, 2 and 3, a battery thermal management system according to an embodiment of the present application includes: a first circulation loop 1 and a second circulation loop 2. The first circulation circuit 1 includes: the compressor 11, the first heat exchanger 12, the throttling element 13 and the battery cooler 14 are sequentially communicated through pipelines, and the refrigerant in the first circulation circuit 1 circularly flows among the compressor 11, the first heat exchanger 12, the throttling element 13 and the battery cooler 14. The second circulation circuit 2 includes: the cooling liquid in the second circulation circuit 2 circulates between the power battery 22 and the battery cooler 14 through the power battery 22 and the battery cooler 14 which are sequentially communicated by a pipe. The coolant in the first circuit 1 is adapted to remove heat from the coolant in the second circuit 2 in the battery cooler 14.
It should be understood that the first circulation circuit 1 is a circulation circuit of an air conditioning system of a vehicle, and when the first circulation circuit 1 operates to reduce the temperature of the power battery 22, the temperature of the refrigerant passing through the battery cooler 14 in the first circulation circuit 1 is lower than the temperature of the coolant passing through the battery cooler 14 in the second circulation circuit 2, so that the refrigerant in the first circulation circuit 1 and the coolant in the second circulation circuit 2 exchange heat in the battery cooler 14, that is, the refrigerant in the first circulation circuit 1 takes away the heat of the coolant in the second circulation circuit 2 in the battery cooler 14.
In the second circulation circuit 2, the cooling fluid circulates between the power battery 22 and the battery cooler 14, that is, the cooling fluid carries heat generated by the power battery 22 when passing through the power battery 22, the cooling fluid with a higher temperature discharged from the power battery 22 passes through the battery cooler 14, and is carried by the cooling medium in the battery cooler 14, and the cooling fluid with a lower temperature discharged from the battery cooler 14 enters the power battery 22 again, so that the circulation is performed to continuously reduce the temperature of the power battery 22, and the reliability and the safety of the power battery 22 are improved.
The second circulation loop 2 further includes: a motor radiator 23, the motor radiator 23 being adapted to lower the temperature of the cooling liquid in the second circulation circuit 2. The motor radiator 23 is a component for cooling the power motor 25 in the vehicle. In the related art, when the power battery 22 is in a charging state, the power motor 25 is usually idle, and the motor radiator 23 for radiating the power motor 25 is also usually idle, and in the present application, the motor radiator 23 is added to the second circulation loop 2 through a pipeline, so that when the power battery 22 is charged, the idle motor radiator 23 can radiate heat for the power battery 22, which not only improves the cooling effect of the power battery 22, but also improves the utilization rate of the motor radiator 23, and effectively utilizes the components inside the vehicle.
According to the battery thermal management system of the embodiment of the application, the power battery 22 is cooled through the battery cooler 14, and the power battery 22 is also cooled through the motor radiator 23, so that the cooling rate of the battery thermal management system is greatly improved compared with a scheme of only using the battery cooler 14. And the motor radiator 23 is an existing component in the vehicle, so that the components in the vehicle are effectively utilized, the utilization rate of the motor radiator 23 is improved, and the cost of the battery thermal management system is reduced. And the motor radiator 23 is added into the second circulation loop 2 through a pipeline, so that the total amount of cooling liquid in the second circulation loop 2 is increased, the heat capacity of the second circulation loop 2 is improved, and the refrigerating capacity of the battery thermal management system is indirectly improved.
In some embodiments, the motor radiator 23 includes heat exchange tubes and heat exchange fins sleeved on the heat exchange tubes, the cooling liquid is suitable for flowing in the heat exchange tubes, and the cooling liquid in the second circulation loop 2 is suitable for heat exchange with the atmosphere in the motor radiator 23.
Through the technical scheme, when the cooling liquid in the second circulation loop 2 passes through the motor radiator 23, the heat is transferred to the atmosphere through the motor radiator 23, so that the temperature of the cooling liquid is reduced, the cooling mode is simple in structure, and the cost of the motor radiator 23 is reduced.
Referring to fig. 1, 2 and 3, in some further embodiments, the motor radiator 23 is disposed at one side of the first heat exchanger 12, and wind generated by the cooling fan 121 of the first heat exchanger 12 is adapted to blow through the first heat exchanger 12 and the motor radiator 23.
Through the technical scheme, the contact between the motor radiator 23 and air is increased by utilizing the wind of the cooling fan 121 of the first heat exchanger 12, and the heat dissipation effect of the motor radiator 23 is improved.
In some other embodiments, the motor radiator 23 may also be a water-cooled heat exchanger.
Referring to fig. 1, 2, and 3, in some embodiments, the battery thermal management system further comprises: the switching device 3, the switching device 3 communicates with the power battery 22, the battery cooler 14 and the motor radiator 23, respectively. The battery thermal management system has a first cooling mode and a second cooling mode, and the switching means 3 is adapted to switch the battery thermal management system between the first cooling mode and the second cooling mode.
In the first cooling mode, the coolant in the second circulation circuit 2 flows through the power battery 22, the motor radiator 23, and the battery cooler 14 in this order, and the coolant in the second circulation circuit 2 circulates among the power battery 22, the motor radiator 23, and the battery cooler 14.
That is to say, when the atmospheric temperature is lower than the temperature of the coolant, the battery thermal management system may be switched to the first cooling mode, the coolant with the higher temperature discharged from the power battery 22 first dissipates heat through the motor radiator 23, then further dissipates heat through the battery cooler 14, the coolant with the lower temperature discharged from the battery cooler 14 enters the power battery 22 again, and the cooling rate of the battery thermal management system is effectively increased through the dual cooling of the motor radiator 23 and the battery cooler 14.
In the second cooling mode, the coolant circulates between the power cell 22 and the battery cooler 14. I.e. the motor radiator 23 does not participate in the second circulation circuit 2.
That is, when the atmospheric temperature is greater than or equal to the temperature of the coolant, the motor radiator 23 cannot dissipate heat from the coolant, and there is a possibility of further increasing the temperature of the coolant, the battery thermal management system may be switched to the second cooling mode, and the power battery is cooled down 22 using only the battery cooler 14.
In the technical scheme, when the atmospheric temperature is lower than the temperature of the cooling liquid, the idle motor radiator 23 is added into the second circulation loop 2 through the switching device 3, so that the cooling rate of the battery thermal management system is increased; when the atmospheric temperature is higher than or equal to the temperature of the cooling liquid, the motor radiator 23 does not participate in the second circulation loop 2 through the switching device 3, and the flexibility of the battery thermal management system is effectively improved.
Referring to fig. 1, 2 and 3, in some embodiments, the switching device 3 comprises: the first four-way valve 31 is respectively communicated with the power battery 22, the battery cooler 14, the motor radiator 23 and the second four-way valve 32, and the second four-way valve 32 is respectively communicated with the motor radiator 23, the battery cooler 14, the power battery 22 and the first four-way valve 31.
Referring to fig. 1, 2 and 3, in the first cooling mode, the cooling liquid in the second circulation loop 2 flows through the power battery 22, the second four-way valve 32, the first four-way valve 31, the motor radiator 23, the second four-way valve 32, the battery cooler 14, the first four-way valve 31 and the power battery 22 in this order; in the second cooling mode, the cooling liquid in the second circulation circuit 2 flows through the power cell 22, the second four-way valve 32, the battery cooler 14, the first four-way valve 31, and the power cell 22 in this order.
In the technical scheme, the switching device 3 can complete the switching of the battery heat management system between the first cooling mode and the second cooling mode through the two four-way valves, the switching device 3 is simple in structure, and the cost of the battery heat management system is reduced.
Referring to fig. 1, 2 and 3, in some embodiments, the second circulation loop 2 further comprises: a first water pump 21, the first water pump 21 being adapted to drive the coolant to flow in the second circulation circuit 2.
Through the technical scheme, the second circulation loop 2 can drive the cooling liquid to flow through the first water pump 21, the driving mode is simple, and the cost of the battery thermal management system is reduced.
Referring to fig. 1, 2 and 3, in some embodiments, the second circulation loop 2 further comprises: the water pump comprises a second water pump 24 and a power motor 25, one end of the second water pump 24 is communicated with the motor radiator 23, the other end of the second water pump is communicated with the power motor 25, and one end, far away from the second water pump 24, of the power motor 25 is communicated with a second four-way valve 32.
It should be noted that, in the related art, the second water pump 24 and the power motor 25 are both existing components inside the vehicle, and the second water pump 24 is used for driving the coolant to circularly flow between the motor radiator 23 and the power motor 25. In the embodiment of the present application, both the second water pump 24 and the power motor 25 are added into the second circulation loop 2, and in the first cooling mode, the cooling liquid in the second circulation loop 2 sequentially flows through the power battery 22, the second four-way valve 32, the first four-way valve 31, the motor radiator 23, the second water pump 24, the power motor 25, the second four-way valve 32, the battery cooler 14, the first four-way valve 31, the first water pump 21, and the power battery 22. The second water pump 24 may be used to drive the flow of the cooling liquid in the second circulation loop 2, so as to improve the cooling performance of the battery thermal management system.
Referring to fig. 1, 2 and 3, in some embodiments, the first cooling mode has a first state, a second state and a third state. In the first state, the first water pump 21 or the second water pump 24 drives the coolant to flow in the second circulation circuit 2; in the second state, the first water pump 21 and the second water pump 24 both drive the coolant to flow in the second circulation circuit 2; in the third state, while the first water pump 21 and the second water pump 24 both drive the coolant to flow in the second circulation circuit 2, the compressor 11 also drives the coolant to flow in the first circulation circuit 1, so that the coolant in the second circulation circuit 2 is taken away heat by the coolant in the second circulation circuit 2 when passing through the battery cooler 14.
That is, when the cooling demand of the power battery 22 is low, the second circulation circuit 2 may be in the first state, that is, only the first water pump 21 or the second water pump 24 is used to drive the coolant to flow in the second circulation circuit 2, the first circulation circuit 1 in which the compressor 11 is located does not operate, and the second circulation circuit 2 only dissipates heat through the motor radiator 23, so as to reduce energy consumption. When the cooling effect of the first state is not good, the second state may be adopted, in which the first water pump 21 and the second water pump 24 are used to simultaneously drive the coolant to flow in the second circulation circuit 2, increasing the flow rate of the coolant, thereby improving the cooling effect of the second circulation circuit 2. When the cooling effect in the second state is not good, the third state is adopted, the first water pump 21 and the second water pump 24 are used for driving the cooling liquid to flow, and the first circulation circuit 1 is also used for reducing the temperature of the cooling liquid in the second circulation circuit 2, so that the cooling performance of the second circulation circuit 2 is further improved.
Referring to fig. 1, 2, and 3, in some embodiments, the battery thermal management system further comprises: a heat pump mode in which the coolant in the second circulation circuit 2 flows through the power battery 22, the battery cooler 14 and the motor radiator 23 in this order, and the coolant discharged from the battery cooler 14 is adapted to draw heat from the atmosphere in the motor radiator 23.
The coolant discharged from the power battery 22 passes through the battery cooler 14 first, and transfers heat to the refrigerant in the first circulation circuit 1, so that the temperature of the coolant discharged from the battery cooler 14 is lower than the atmospheric temperature, and therefore the coolant can absorb heat from the atmosphere when passing through the motor radiator 23.
Because the first circulation loop 1 is a circulation loop in the vehicle air conditioning system, when the battery heat management system is in a heat pump mode, heat generated by the power battery 22 and heat absorbed by the motor radiator 23 from the atmosphere are used for providing a heat source for the first circulation loop 1, so that the heating performance of the battery heat pump is improved, and the heating effect of the vehicle air conditioning system is effectively improved.
Referring to fig. 1, 2 and 3, specifically, when the battery thermal management system is in the heat pump mode, the first four-way valve 31 communicates the battery cooler 14 with the motor radiator 23, the first water pump 21 with the second four-way valve 32, the second four-way valve 32 communicates the battery cooler 14 with the power battery 22, and the power motor 25 with the first four-way valve 31. That is, the coolant discharged from the power battery 22 flows through the second four-way valve 32, the battery cooler 14, the first four-way valve 31, the motor radiator 23, the second water pump 24, the power motor 25, the second four-way valve 32, the first four-way valve 31, the first water pump 21, and the power battery 22 in this order.
A vehicle according to an embodiment of the present application includes: the battery thermal management system provided in the above technical scheme.
According to the vehicle of this application embodiment, because contain the battery thermal management system that provides in the above-mentioned technical scheme, consequently, when the power battery 22 of the vehicle that this application provided charges, not only cool off power battery 22 through battery cooler 14, still cool off power battery 22 through motor radiator 23, promoted power battery 22's cooling rate greatly, improved the security that the vehicle charges.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
In the description of the present application, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present application, "a plurality" means two or more.
In the description of the present application, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact not directly but via another feature therebetween.
In the description of the present application, the first feature being "on," "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery thermal management system, comprising:
a first circulation loop (1), the first circulation loop (1) comprising: the cooling system comprises a compressor (11), a first heat exchanger (12), a throttling element (13) and a battery cooler (14) which are sequentially communicated through pipelines, wherein a refrigerant in the first circulation loop (1) circularly flows among the compressor (11), the first heat exchanger (12), the throttling element (13) and the battery cooler (14);
a second circulation loop (2), the second circulation loop (2) comprising: the power battery (22) and the battery cooler (14) are communicated in sequence through a pipeline, the cooling liquid in the second circulation loop (2) circularly flows between the power battery (22) and the battery cooler (14), and the cooling medium in the first circulation loop (1) is suitable for taking away the heat of the cooling liquid in the second circulation loop (2) in the battery cooler (14);
the second circulation loop (2) further comprises: -an electric motor radiator (23), said electric motor radiator (23) being adapted to reduce the temperature of the cooling liquid in said second circulation circuit (2).
2. The battery thermal management system of claim 1, wherein the motor heat sink (23) comprises heat exchange tubes and heat exchange fins sheathed around the heat exchange tubes, and wherein a cooling liquid is adapted to flow inside the heat exchange tubes.
3. The battery thermal management system according to claim 2, wherein the motor heat sink (23) is arranged at one side of the first heat exchanger (12), and wherein the wind produced by the cooling fan (121) of the first heat exchanger (12) is adapted to blow through the first heat exchanger (12) and the motor heat sink (23).
4. The battery thermal management system of claim 1, further comprising: a switching device (3), said switching device (3) being in communication with said power battery (22), said battery cooler (14) and said motor radiator (23), respectively;
the battery thermal management system has a first cooling mode and a second cooling mode, the switching device (3) being adapted to switch the battery thermal management system between the first cooling mode and the second cooling mode;
in a first cooling mode, the cooling liquid in the second circulation loop (2) flows through the power battery (22), the motor radiator (23) and the battery cooler (14) in sequence;
in a second cooling mode, cooling fluid circulates in the second circulation loop (2) between the power cell (22) and the cell cooler (14).
5. The battery thermal management system according to claim 4, characterized in that the switching device (3) comprises: the motor radiator comprises a first four-way valve (31) and a second four-way valve (32), wherein the first four-way valve (31) is communicated with the power battery (22), the battery cooler (14), the motor radiator (23) and the second four-way valve (32) respectively, and the second four-way valve (32) is communicated with the motor radiator (23), the battery cooler (14), the power battery (22) and the first four-way valve (31) respectively.
6. The battery thermal management system according to claim 5, characterized in that the second circulation circuit (2) further comprises a first water pump (21), the first water pump (21) being adapted to drive the coolant to flow in the second circulation circuit (2).
7. The battery thermal management system of claim 6, further comprising: one end of the second water pump (24) is communicated with the motor radiator (23), the other end of the second water pump (24) is communicated with the power motor (25), and one end, far away from the second water pump (24), of the power motor (25) is communicated with the second four-way valve (32).
8. The battery thermal management system of claim 7, wherein the first cooling mode has a first state, a second state, and a third state;
in a first state, the first water pump (21) or the second water pump (24) drives the coolant to flow in the second circulation circuit (2);
in a second state, the first water pump (21) and the second water pump (24) drive the coolant to flow in the second circulation circuit (2);
in a third state, the first water pump (21) and the second water pump (24) drive the coolant to flow through the second circulation circuit (2), and the compressor (11) drives the refrigerant to flow through the first circulation circuit (1).
9. The battery thermal management system according to any of the claims 1-8, characterized by a heat pump mode, in which the coolant in the second circulation loop (2) flows in turn through the power battery (22), the battery cooler (14) and the motor radiator (23), the coolant discharged from the battery cooler (14) being adapted to extract heat from the atmosphere in the motor radiator (23).
10. A vehicle, characterized by comprising: the battery thermal management system of any of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223164216.0U CN218616342U (en) | 2022-11-28 | 2022-11-28 | Battery thermal management system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223164216.0U CN218616342U (en) | 2022-11-28 | 2022-11-28 | Battery thermal management system and vehicle |
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| CN218616342U true CN218616342U (en) | 2023-03-14 |
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